俄罗斯标准 橡胶膨胀节
GOST 12820-80 Rubber expansion joint
俄罗斯标准橡胶膨胀节性能参数表
German standard rubber expansion joint performance parameter table
法兰参数为 Flange parameters：GOST 12820-80.
NR ≤80℃ Water, air.
EPDM ≤120℃
Acid-base, corrosion, sea water.
NBR ≤80℃ Hydraulic oil lubricating oil.
FKM ≤120℃
High temperature, oil, strong acid!
